Ethanol flame dramatically increases, a series of pops or bangs follow after potassium permanganate is added
name: Oxidization of ethanol in presence of hydrogen peroxide is accelerated by the addition of potassium permanganate
Science experiment-Cannon fire explosion!
by marie j
Use safety screens.
Wear eye protection.
There is a serious fire risk - a fire extinguisher should be ready.
Make sure there is nothing flammable nearby.
Always follow general safety
recommendations. Please note that conducting chemistry
experiments you must comply with the relevant legal procedures in
C2H5OH + 5O2 → 2CO2 + 3H2O
2MnO4-+ 3H2O2 → 2MnO2 + 2H2O + 3O2 + 2OH-
- Pour 30 ml of hydrogen peroxide and 20 ml of ethanol into evaporating basin.
- Light the mixture with a burning splint.
- Sprinkle potassium permanganate into the evaporating basin (keeps at arm's length, add about 0.5 g of KMnO4).
Potassium permanganate reacts with hydrogen peroxide to produce oxygen.
This oxygen locally accelerates the burning of ethanol and the mini-explosions are produced.